1. First check whether the system is equipped with mysql
rpm -qa | grep mysql
2. Download the repo source mysql
wget http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm
3. Install mysql-community-release-el7-5.noarch.rpm package
rpm -ivh mysql-community-release-el7-5.noarch.rpm
4. Install MySQL
yum -y install mysql
5. Reset MySQL password
Mysql command-line input directly into the database
update user set password=password('123456') where user='root';
exit exit
6. Restart the MySQL service
systemctl restart mysql
Re-enter the input mysql -uroot -p123456
The basic command mysql
show databases; view the database
use mysql; switch databases
sleect database (); view the current database
show tables Table View Curry
desc name.node; see table structure
select * from name.node view the name of the node table data library
create database name character set utf8mb4; create database character name support Chinese character set specified utf8mb4
create table name.node (id int (10), dc char (20)); create the table structure
insert into name.node values (1, "zhangsan"); add data to a node table
update name.node set id = 1 where dc = "zhangsan" id changed to meet the conditions of data such as the conditions change without the entire data list
drop database name; delete database name
delete from name.node where id = 1; delete satisfies the conditions where the data without such a table where all the data is deleted
drop table name.node; delete the entire table